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Rock Cycle
Question | Answer |
---|---|
What are three types of rocks? | sedimentary, igneous, metamorphic |
What types of rocks are made from sediments? | sedimentary |
When sediments are deposited and lower levels are pressed together | compaction |
When minerals dissolved in water and cements sediments together | cementation |
What are the major characteristics of sedimentary rocks? | layers, formed in water, only rocks in fossils |
What type of rock is formed by cooling lava? | igneous |
What type of igneous rock is formed from magma inside earth? | intrusive |
What type of igneous rock is formed from lava outside earth? | extrusive |
What type of rock is changed by heat, pressure or chemical reaction? | metamorphic |